Finding the Fourth Proportional to 42,512,957.10, 63,779,554.48 and 13,759,092.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,512,957.10 : 63,779,554.48 = 13,759,092.72 : x
2. Step 2: Convert to fraction form
   42,512,957.10/63,779,554.48 = 13,759,092.72/x
3. Step 3: Cross multiply
   42,512,957.10x = 63,779,554.48 × 13,759,092.72
4. Step 4: Simplify right side
   42,512,957.10x = 877,548,803,730,611.38
5. Step 5: Solve for x
   x = 877,548,803,730,611.38/42,512,957.10
6. Step 6: Final answer
   x = 20,641,913.99